28277710943 has 2 divisors, whose sum is σ = 28277710944. Its totient is φ = 28277710942.

The previous prime is 28277710931. The next prime is 28277710973. The reversal of 28277710943 is 34901777282.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28277710943 - 2¹⁸ = 28277448799 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 28277710891 and 28277710900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28277710973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14138855471 + 14138855472.

It is an arithmetic number, because the mean of its divisors is an integer number (14138855472).

Almost surely, 2^28277710943 is an apocalyptic number.

28277710943 is a deficient number, since it is larger than the sum of its proper divisors (1).

28277710943 is an equidigital number, since it uses as much as digits as its factorization.

28277710943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 28277710943 in words is "twenty-eight billion, two hundred seventy-seven million, seven hundred ten thousand, nine hundred forty-three".